00350nam a2200133Ia 450000500170000000800410001702000190005808200190007710000200009624500410011626000330015730000090019070000170019920260205063307.0260111s9999||||xx |||||||||||||| ||und||  a97888189301057  a500.2076  K96C  aKushwaha, Sunil 0aUGC- CSIR-NET JRF : physical science  aNew DelhibDanika pub.c2017  aV.P.  aSingh, N.M./